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7 Wonder(ing)s of FancyURL

I'm chasing after some FancyURL problem that // is appended to the parmalink in some plugins. I was confused to see some plugins need to manually append the blog URL when creating link with createItemLink(), but others is not needed.....

It seem that some plugins need to manually append IndexURL after calling createItemLink(), due to some problem that $CONF['Self'] is empty.

Wondering #2
In createItemLink(), it has the line:

$link = $CONF['ItemURL'] . '/item/' . $itemid;

This suggest ItemURL (which I believed is from $CONF['Self'] in fancyurls.config.php... with $CONF['Self'] in index.php set to "." Why?) should be without a trailing "/". Since the FancyURL link alreasy adding a / in front of item/itemid... True? I think the URL in normal need to to trail with /, even through browser can calm with it.

Wondering #3
In NP_Trackback, I saw this:

...
...
// a little hack to get a working permanent URL for the item
if (!$CONF['ItemURL'])
$CONF['ItemURL'] = $blog->getURL();
$url = createItemLink($itemid);
...
...

This seem to fix the problem for plugin that need to add IndexURL in front of $url..... to make wonder #1 working properly.

Wondering #4
All the plugins that is working properly without have to append IndexURL or use the ItemURL hack in Wonder #3 seem to be those with only doSkinVar.... is that CONF['Self'] only function in doSkinVar?

Wondering #5
Given Wonder #1 and #3, should we put the #blog->getURL fix in globalfunctions.php so it's fixed once and for all?

Wondering #6
Is that only me find that there are many places with the Blog's URL too confusing?

$CONF['Self'] in index.php

$CONF['Self'] in fancyurls.config.php

Site URL in global setting

(Blog) URL in blog setting

Some plugin cans even access $CONF['IndexURL']

Can we simpify this?

Wondering #7
karma, where are you? (seem to be on vacation or something.... offline)